Exothermic behaviors of mechanically abused lithium-ion batteries with dibenzylamine
作者: Yang ShiDaniel J. NoelleMeng WangAnh V. LeHyojung YoonMinghao ZhangYing Shirley MengYu Qiao
作者单位: 1Program of Materials Science and Engineering, University of California – San Diego, La Jolla, CA 92093, USA
2Department of Structural Engineering, University of California – San Diego, La Jolla, CA 92093-0085, USA
3Department of NanoEngineering, University of California – San Diego, La Jolla, CA 92093-0448, USA
刊名: Journal of Power Sources, 2016, Vol.326 , pp.514-521
来源数据库: Elsevier Journal
DOI: 10.1016/j.jpowsour.2016.07.034
关键词: Lithium-ion batteryThermal runawaySafetyConductivityElectrolyte
原始语种摘要: Abstract(#br)A thermal-runaway retardant (TRR) of lithium-ion batteries (LIBs), dibenzylamine (DBA), is investigated. In a TRR-modified LIB, DBA can be encapsulated in packages made of inert materials. When the LIB is subjected to mechanical abuse, the packages would be broken apart and the TRR is released. In nail penetration and impact tests, addition of 4 wt% DBA reduces the temperature increase of fully charged LIR-2450 cells by nearly 50%. The influence of TRR packages on the cycling performance of LIBs is negligible. The working mechanism of DBA is associated with the decrease in electrolyte conductivity, the increase in charge transfer resistance, and the reduction in lithium ion (Li + ) transference numbers.
全文获取路径: Elsevier  (合作)
影响因子:4.675 (2012)

  • dibenzylamine 二苄基胺
  • mechanically 用机械
  • lithium